A transportation engineering study was conducted to determine the proper design of bike lanes. Data was gathered on bike- lane widths and average distance between bikes and passing cars. The data from 9 streets is

(a) Plot the data.
(b) Fit a straight line to the data with linear regression. Add this line to the plot.
(c) If the minimum safe average distance between bikes and passing cars is considered to be 2 m, determine the corresponding minimum lanewidth.

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Distance, m 2.4 1.5 2.4 1.8 1.8 2.9 1.2 1.2 Lane width, m 2.9 2.1 2.3 2.1 1.8 2.7 1.5 2.9 1.5